Breast Cancer Incidence in Asian American, Native Hawaiian, and Pacific Islander Populations, 2000-2022

What are the trends in invasive breast cancer incidence rates in Asian American, Native Hawaiian, and Pacific Islander ethnic groups?In this cross-sectional study of 148 608 Asian American, Native Hawaiian, and Pacific Islander females, breast cancer incidence rates have been increasing at a rate of more than 3% per year in nearly all Asian American ethnic groups and has been especially pronounced for females aged less than 50 years, with advanced stages of disease, and with hormone receptor–positive and (formerly /neu)–negative and triple-negative subtypes.These findings highlight that research and public health efforts among distinct Asian American, Native Hawaiian, and Pacific Islander ethnic groups are needed to identify contributing factors, promote awareness, and increase screening for breast cancer, especially given the rapid increases in early-onset cancer.

Corresponding Author: Scarlett Lin Gomez, MPH, PhD, Department of Epidemiology and Biostatistics, University of California, San Francisco, 550 16th St, 2nd Floor, San Francisco, CA 94158 (Scarlett.gomez@ucsf.edu).

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